Firearm.



P. MUSER.

FIREARM. v AFPLIGATIGN FILED 001219.19111.

Patented Mar. 28, 1911.

beneath the tubel 1'.

UNITED STATES PATENT OFFICE.

:PAUL MAUSER, OF OBERNDORF-ON-THE-NECKAR, GERMANY.

FIREARM.

specification of Letters Patent.

Patented Mar. 28, 1911.

Application tiled October 19,1910. Serial No. 587,861.

in;r is a tull. clear, and exact description.

ln the employment of modern automatic loading firearms for militarypurposes it has latterly been found to be necessary to inelose thebarrel in the stoel: 'tor itsI entirel length, that is to say to provideit throughout' its whole length with what is termed hand protection. inordervto protect the hands of the user from burning. It has, however,been .'lionnd that with long-continued quick tirinkgr thev stock beginsto Smoke and even to carhouize, so that means areI required to insulatethe stock (which. is itself used as a heat insulating means) from theaction ot the heatot the barrel. Means serving this object of aircooling,r or heat insulation for the stocks of firearms affordingprotection for the hands is illustrated by way of examplein theaeronqmnyingr dra-wing, in which: i

Figure 1 shows on embodiment of the invention in longitudinal elevation,partlylin section. F ig. 2 is a vertical cross section on the line A-Ain Fig. 1: and Fig. 3 illustrates another constrnctional form or" theinvent-ion in longitudinal elevation, partlbr in section.

ln accordance. with the invention, atube r is arranged inside the woodenstock over the barrel Z which is inelosed below throughout its entirelength b v the stock s and above by the protecting wood casing hp: thefront end ot' this tube 1f bears'against. the front sight support andits rear end bears againstthe foot of the haelt sight. This tube fr, inwhich the barrel is entirely tree, is tinted in such a manner thatowing' to the space formed between the wooden .stoclaand the tube, theair is able to pass hetweenithe barrel and the stock and the handprotecting` easing.

'lhe tube Ii' is formed with discharge aperturesI '1^ whirh place it incmnmunieation with the l'lutiugs and also with longitudinal reeesses.vl`in the .stm-.k which are formed ()n its under side the stoel: itselfis formed with obliquo air apen lures which establish conunuuirationlie-- tween the longitudinal reresses al and the atmosphere. ln thismanner llirient cooling ot' the barrel is provided for, the openings inthe tube enable the hot air to issue into the. wide recesses in thestock, While the barrel itself does notl become so rapidly heated.because it is entirely free in the tube, and deterioration of the barrelowing' t0 the trirtion ot the bullet is considerably re duced.

The barrel and tlu` tube constitute a Very rigid whole. and impart.adequate strength t-o the stoel; so that exatitude of aim is inrreased.because otherwise, when greatly tart that thtl fibers of the wood do notrun exactly parallel and this causes distortion ot' the barrel. and thusimpairs the accuracy ot aim. All these defects are almost entirelyavoided in the present larranggement by the combination of tbe stockwith a tube arranged inside it and inclosing the barrel, thistul'.e.heing provided with Ventilating ports.

ln the construction illustrated in Fig..3 the tube r which is arrangedover the barrel Z is eut. witslna screw thread e on its rear end.whereit'i's screwed onto a correspondingl)v threaded portion ot' thebarrel. In order to strengthen it, the threaded part e of the tube v' ispreferably surrounded by a steel ring f or the like. The length of thetube f' is such that between its trout end and that in tiring a t'reelinear expansion of the outer tube can take place.

lVhat I claim and desire to secure b v Letters Patent of the UnitedStates is:

l. firearm including a barrel, a tinted tubular member arranged aroundsaid barrel and inclosinzgr a space between the. barre-l and the innertare ot' said tinted tubular member. a stock and a hand protectingcasing arranged around said tubular member, openings in .said tubularmember and transverse passages extendingI through said stock.

2. tirearm including a barrel. a tluted tubular member arranged aroundsaid barrel and iurloslnr a space between the barrel and 4the innertamot' A aid tubular member. openings in .said tnbular member. a stockformed with recesses. a hand protectionlr easing. said .stonk and handprotecting casing' ar angfed around said tubular member and transversepassagers' extending through said stock leadin;r trom the exterior intosaid recesses.

uit. tirearm inchnlinj.r a barrel 4formed l with a screw thread on the.outer periphery the front sight supportplay is provided sot heated. thestoel: is distorted owing to the thereof, a lnted tubular memberarranged l tnhnlar member, and transverse pawn-:ages 10 around saidbarrel and inelosing a Space beextending;r through Suid stonk.

tween the barrel and the inner face of said In \\'iiness hei-trof, 1have hereunto tinted tubular member, a screw thread signed my name inthe presence ef tno snhformed on said tubular member and engagseribingnimes-ses.

ing with the screw thread on said barrel, IAUI) MAUSIGR. openings insaid tubular member, a stock, fitnessen-z a hand protecting easing, saidstock and Elim-:sr llx'rimxmxx,

hand protecting casing arranged around l@aid Fanno Kmnncn.

